Standard Operating Procedure for Cleaning Validation of Homogenizer in Gel Manufacturing
| Department | Gel Manufacturing |
|---|---|
| SOP No. | SOP/GM/161/2025 |
| Supersedes | SOP/GM/161/2022 |
| Page No. | Page 1 of 12 |
| Issue Date | 09/06/2025 |
| Effective Date | 11/06/2025 |
| Review Date | 09/06/2027 |
1. Purpose
To define the procedure for conducting cleaning validation of homogenizers used in gel manufacturing to ensure removal of product residues, cleaning agents, and microbial contamination to acceptable levels.
2. Scope
This procedure applies to the cleaning validation of homogenizers used in manufacturing gels at the pharmaceutical formulation unit.
3. Responsibilities
- Production Staff: Executes cleaning activity and supports validation.
- QA Executive: Prepares validation protocol and reviews results.
- QC Analyst: Performs residue analysis and microbial tests.
- Validation Officer: Coordinates and documents the validation exercise.
4. Accountability
Head
– Manufacturing and Head – Quality Assurance are jointly accountable for implementation and compliance of cleaning validation activities.
5. Procedure
5.1 Preparation of Validation Protocol
- Draft a cleaning validation protocol including acceptance criteria, sampling locations, analytical methods, and swabbing procedures.
- Get protocol approved by QA Head and execute during scheduled batch cleaning.
5.2 Execution of Cleaning
- Clean the homogenizer as per approved cleaning SOP using validated cleaning agents.
- Disassemble parts in contact with product and ensure thorough cleaning.
- Visually inspect for residue, stains, or particulate matter.
5.3 Sampling and Analysis
- Conduct swab sampling at worst-case locations (e.g., blades, shaft junctions, inner walls).
- Use pre-validated swab kits and follow aseptic technique.
- Submit swabs to QC for residue testing using HPLC or TOC and microbial count analysis.
5.4 Acceptance Criteria
- Residue levels should be below 10 ppm or as per toxicological limits (MACO).
- Microbial count must meet the acceptable limits (NMT 100 CFU/swab, absence of pathogens).
- Three consecutive successful cleaning runs required to validate cleaning process.
5.5 Documentation and Reporting
- Record all observations in Cleaning Validation Report – Annexure-1.
- Summarize analytical results, deviations (if any), corrective actions, and final conclusion.
- QA to review and approve the validation report.
6. Abbreviations
- CFU: Colony Forming Unit
- HPLC: High Performance Liquid Chromatography
- MACO: Maximum Allowable Carryover
- QA: Quality Assurance
- QC: Quality Control
- TOC: Total Organic Carbon
7. Documents
- Cleaning Validation Protocol – Annexure-1
- Swab Sampling Log – Annexure-2
- Cleaning Validation Report – Annexure-3
8. References
- ICH Q7: Good Manufacturing Practice Guide for Active Pharmaceutical Ingredients
- WHO TRS 937 Annex 4: Validation Guidelines
- FDA Guidance: Cleaning Validation 2011
9. SOP Version
Version: 2.0
10. Approval Section
| Prepared By | Checked By | Approved By | |
|---|---|---|---|
| Signature | |||
| Date | |||
| Name | |||
| Designation | Jr. Production Chemist | QA Executive | Head – Manufacturing |
| Department | Gel Manufacturing | Quality Assurance | Manufacturing |
11. Annexures
Annexure-1: Cleaning Validation Protocol Format
| Protocol No. | |
|---|---|
| Date | |
| Equipment ID | |
| Cleaning Agent | |
| Sampling Locations | |
| Analytical Method | HPLC/TOC |
| Acceptance Criteria | Residue < 10 ppm |
Annexure-2: Swab Sampling Log
| Sample No. | Location | Date | Analyst | Remarks |
|---|---|---|---|---|
| 1 | Blades | |||
| 2 | Shaft |
Annexure-3: Cleaning Validation Report Format
| Report No. | |
|---|---|
| Execution Date | |
| Results Summary | Attach QC results |
| Deviations | |
| Conclusion | |
| QA Review |
Revision History
| Revision Date | Revision No. | Change Description | Reason | Approved By |
|---|---|---|---|---|
| 01/05/2022 | 1.0 | Initial release | New equipment validation | QA Head |
| 09/06/2025 | 2.0 | Updated for microbial and TOC integration | Annual SOP review | QA Head |